Examen de la vision chez les employés de chemins de fer : rapport présenté à M. le ministre des Travaux publics
A French report of 1880 by Paul Redard, published in Paris by J.-B. Baillière et fils, examining eyesight among railway employees and presented to the Minister of Public Works. The pictures are technical drawings and one colour plate of optical test apparatus, with lettered plans, cross-sections and printed test discs, and a designer might take from their precise line diagrams and the bold red and blue colour plate for a clinical or instructional look.
